Compression rotary engine



E. G. JOHANSON.

COMPRESSION ROTARY ENGINE.

APPLICATION FILED MAR. 31, I916.

Patented Sept. 23, 1919.

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E. G. JOHANSON. COMPRESSION ROTARY ENGINE.

APPLICATION FILED MAR. 3l| I916.

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EMIL G. JOHANSON, OF CHICAGO, ILLINOIS.

COMPRESSION ROTARY ENGINE.

Specification of Letters Patent. Patented Sept. 23, 1919.

Applicatibn filed March 31, 1916. Serial No. 87,927.

To all whom it may concern:

Be it known that I, EMIL G. JoHANsoN, a subject of the King of Sweden, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Compression Rotary Engines, of which the following is a specification.

My invention relates to rotary engines and has particular reference to internal explosion engines. 7

The object of the invention is to provide an improved compression and explosion engine adapted to accommodate any desired number of cylinders.

With these objects in view my invention consists in the novel construction, combination and arrangement of parts, all as hereinafter described in detail, illustrated in the accompanying drawings, and incorporated in the appended claim. I a

In the drawingst Figure 1 is a' front elevation, partly broken away, of an engine embodying my invention.

Fig. 2 is a section taken substantially on line 2-2 of Fig. 1.

Fig. 3 is a section taken substantially on 'line 3-3 of Fig. 2.

' in shown 2 .ed a plate 5 which skeleton form. In the present illustration Fig. 4 is a rear elevation, partly broken away, of said engine.

In the embodiment of my invention hereis a base-plate from which rises and 4 on which is mountmay be of ornamental a pair of posts 3 only a central circular portion is removed and is stamped out to form a rearWa-rdly projecting flange 6 that is connected with a hub 7 by web portions 8, 9 and 10. On the front face of the-bearing plate 5 and concentrically with the flange 6, is a band 11 which covers the periphery of a turbine wheel 12 in which is a groove 13 that is open only toward said band 11, as shown in Figs. 1 and 2. bearing plate 5 by means of bolts 14, which pass through hollow studs 15 on said bearing plate and engage lugs 16 that project from the rear edge of the band 11. These studs are spacers which offset the band 11 from the base-plate the required distance.

The wheel 12 is loosely mounted on a shaft 17 which has its bearings on the hub portion 7. The wheel 12 has a hub portion 18 from which projects a pair of pins or studs The band 11 is secured to the 19 and 20 which engage suitable holes in the inner face of a collar 21 that is secured to the shaft 17 by means of set screws 22 and 23, or otherwise. Thus motion is transmitted from the shaft to the wheel 12 through said apertured collar and studs 19 and 20. On the rear end 17- of the shaft 17 is eccentrically mounted a circular disk 24 which is rotatably mounted in a circular opening 25 in a hub portion 26 of a disk stamped to form said hub 26, as well as a band 27 that is at right angles to said hub and is connected therewith through webs 28, 29 and 30, and a vertical flange 31 out of which portions 32 are stamped to remove superfluous metal. This disk, including the parts 26to 31, is rotated eccentrically with respect to the shaft 17 by means of the eccentrio disk 24 which is held in place in the opening 25 by means of a pair of circular dlsks 33 and 34 that are a little larger than the disk 24 and thus engage between them the hub portion 26. The disks 24, 33 nd 34 may be secured together as by a screw 35 which has threaded engagement with ascrew hole in the disk 34 that extends through the three disks as shown in Fig. 2.

On the band 11 which covers the periphery of the wheel 12, are a series of ten gentially arranged cylinders 36, 37, 38, 39, 40, and 41, the number of which may ,be varled. Each of these cylinders is mounted in a socket portion 42 of a beveled extension 43 which forms, preferably, of the band 11 and is provided wit a stiffening fin 44. Inthe :band 11 is an 0 enmg 45 for each cylinder, through WllCll the explosive mixture is discharged into the groove 13 by means of a piston 46 that is provided with a rod 47 connected through an elbow 48 secured by a screw 49 to the end of the piston rod, and connected by a pivot pm 50 to one end of a pitman 51 pivoted to a wrist-pin 52 On a crank 53. The

latter is keyed to a short shaft 54 having 7 bearings in a hub 54 on the rear face of the bearing plate 5. On the shaft 54 is also keyed a crank 56 which is mounted on a wrist-pin 57 secured to the eccentric flange 31.

Near the end 17' adjacent to the disk fast on said shaft.

of the shaft 17 and 34, is a collar 58 that is In this collar is a bore 59 that extends from the center to the peof said collar and communicates with of the shaft.

riphery a short bore 60 in the end 17' it is-revolved about the axis of the shaft 17.

Each bore 63 communicates through a curved pipe or tube with one of the cylinders'-36 to 41-these pipes or tubes being designated by the numerals 6-1 to 69 inclusive. In con-- nection with the cylinders 40 and ll, 70 (Fig. 1) designates the opening into the cylinder from its tube leading from the port 59. The arrangement for each cylinder is the same and its description for one cylinder will therefore suflice for all. connected'with the cylinder 40, is substantially the explosion chamber in each instance, to be provided with the usual spark plug and sparking mechanism, details not herein shown. Elbow brackets 48 are secured by means of screws 72 and 73 to the late 5, and on the cylinder wing of each liracket is a flange 74 which encircles the cylinder and is secured thereto in any suitable mannensaidcylinder wing being designated by 7 5 and shown as substantially the head of the cylinder.v On the port end 17' of the shaft 17 and against the disk 33, is shrunk a collar 76. Opposite the hub 62,

and secured to the opposite side of the bear- For this purpose the piston head has a movable portion 7 9 from which at right angles extends a part 80 through which the rod of the pistonvpasses and which lies against the back of the piston head, as shown in the sectioned cylinders and 41 in Fig. 1.

The space 71 The spring 81 actuates the piston-extension 7980 the moment the abutment -82 has traveled by the part-79.

Theoperation is as follows; The engine having been started with parts in positions shown in Fig. 1 the compressed gases in front of the piston will be exploded against the abutment or end 82 and against the walls of the explosion chamber and against the piston and piston extension. The abutment 82 being-forced past the piston extension 79 the spring 80 will snap the extension 7980 to form a dividing wall in the groove. The return 01' upward movement of the piston permits the exploded gases in the rear of the piston extension 79 to escape toward the outlet 78. By the time the end 83 of the groove reaches the extension 79 said extension will have been fully withdrawn from out of the groove and will rest against the periphery of the wheel during the compression, or downward, stroke until .the end or abutment 82 passes it.

I claim as my invention z-- The combination with a turbine wheel having a groove in its periphery one end of which forms an abutment, and'having at the opposite end of said groove an exhaust port, of an encircling band which closes said groove on the periphery of said-wheel, a series of cylinders mounted onsaid band, pistons in said cylinders which compress explosive mixture against said wheel and into said groove, movable heads on said pistons arranged to move into said groove independently of the movements of said pistons, means for exploding ases between said abutment and. each of sald heads and pistons, and an eccentrically rotatable disk connected with and actuating said pistons.

In testimony whereof I have hereunto signed my name.

- EMIL G. JOHANSON. 

